Trigoni, N., & Bierman, G. (2001). Inferring the Principal Type and the Schema Requirements of an OQL Query.
Cita Chicago (17th ed.)Trigoni, N., i G. Bierman. Inferring the Principal Type and the Schema Requirements of an OQL Query. 2001.
Cita MLA (9th ed.)Trigoni, N., i G. Bierman. Inferring the Principal Type and the Schema Requirements of an OQL Query. 2001.
Atenció: Aquestes cites poden no estar 100% correctes.